The High-Resolution VGA Balun allows you to transmit text, images, or any WSXGA (1920 x 1200 pixel) data from a computer to a monitor or projector in another location up to 550 feet away over cat. 5 twisted pair cable. With its send and receive units, VGA jumper cables and power supply, this kit contains everything you'll require to transmit VGA over cat. 5 with bandwidth up to 350 MHz. The single 5-volt power supply will power both baluns.